<?php
function msg($msg = '未知的异常',$url = true,$die = true) {
    if ($die == true) {
        ob_clean(); flush();
    }
    ?>  
    <!DOCTYPE html>
    <html xmlns="http://www.w3.org/1999/xhtml" lang="zh-CN">
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
        <title><?php echo SYSTEM_FN ?> - 提示信息</title>
        <style type="text/css">
            html {
                background: #555;
            }
            body {
                background: #eee;
                color: #333;
                font-family: "微软雅黑","Microsoft YaHei", sans-serif;
                margin: 2em auto;
                padding: 1em 2em;
                max-width: 700px;
                -webkit-box-shadow: 0 1px 3px rgba(0,0,0,0.13);
                box-shadow: 0 1px 3px rgba(0,0,0,0.13);
            }
            h1 {
                border-bottom: 1px solid #dadada;
                clear: both;
                color: #666;
                font: 24px "微软雅黑","Microsoft YaHei",, sans-serif;
                margin: 30px 0 0 0;
                padding: 0;
                padding-bottom: 7px;
            }
            #error-page {
                margin-top: 50px;
            }
            #error-page p {
                font-size: 14px;
                line-height: 1.5;
                margin: 25px 0 20px;
            }
            #error-page code {
                font-family: Consolas, Monaco, monospace;
            }
            ul li {
                margin-bottom: 10px;
                font-size: 14px ;
            }
            a {
                color: #21759B;
                text-decoration: none;
            }
            a:hover {
                color: #D54E21;
            }
            .button {
                background: #f7f7f7;
                border: 1px solid #cccccc;
                color: #555;
                display: inline-block;
                text-decoration: none;
                font-size: 13px;
                line-height: 26px;
                height: 28px;
                margin: 0;
                padding: 0 10px 1px;
                cursor: pointer;
                -webkit-border-radius: 3px;
                -webkit-appearance: none;
                border-radius: 3px;
                white-space: nowrap;
                -webkit-box-sizing: border-box;
                -moz-box-sizing:    border-box;
                box-sizing:         border-box;

                -webkit-box-shadow: inset 0 1px 0 #fff, 0 1px 0 rgba(0,0,0,.08);
                box-shadow: inset 0 1px 0 #fff, 0 1px 0 rgba(0,0,0,.08);
                vertical-align: top;
            }

            .button.button-large {
                height: 29px;
                line-height: 28px;
                padding: 0 12px;
            }

            .button:hover,
            .button:focus {
                background: #fafafa;
                border-color: #999;
                color: #222;
            }

            .button:focus  {
                -webkit-box-shadow: 1px 1px 1px rgba(0,0,0,.2);
                box-shadow: 1px 1px 1px rgba(0,0,0,.2);
            }

            .button:active {
                background: #eee;
                border-color: #999;
                color: #333;
                -webkit-box-shadow: inset 0 2px 5px -3px rgba( 0, 0, 0, 0.5 );
                box-shadow: inset 0 2px 5px -3px rgba( 0, 0, 0, 0.5 );
            }

                </style>
    </head>
    <body id="error-page">
        <h3><?php echo SYSTEM_FN ?> - 提示信息</h3>
        <?php echo $msg ?>
        <?php if ($url != false) {
            if ($url == true) {
                echo '<br/><br/><a href="javascript:history.back(-1)"><< 返回上一页</a>';
            } else {
                echo '<br/><br/><a href="'.$url.'"><< 返回上一页</a>';
            }
        } 
        ?>
    </body>
    </html>
    <?php
    if ($die == true) {
        die;
    }
}